On 06/21/2024, Peter Griffin wrote: > The of_syscon_register_regmap() API allows an externally created regmap > to be registered with syscon. This regmap can then be returned to client > drivers using the syscon_regmap_lookup_by_phandle() APIs. > > The API is used by platforms where mmio access to the syscon registers is > not possible, and a underlying soc driver like exynos-pmu provides a SoC > specific regmap that can issue a SMC or hypervisor call to write the > register. > > This approach keeps the SoC complexities out of syscon, but allows common > drivers such as syscon-poweroff, syscon-reboot and friends that are used > by many SoCs already to be re-used. > > Signed-off-by: Peter Griffin <peter.griffin@xxxxxxxxxx> > Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> > Reviewed-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx> Tested-by: Will McVicker <willmcvicker@xxxxxxxxxx> [...] Thanks Peter! I've tested the patch series on my Pixel 6 Pro and all is working well. I verified all the modularized drivers load and probe successfully: root@google-gs:~# lsmod Module Size Used by at24 24576 0 dwc3_exynos 12288 0 i2c_exynos5 28672 0 phy_exynos_ufs 20480 1 ufs_exynos 32768 0 phy_exynos5_usbdrd 36864 2 s3c2410_wdt 24576 0 arm_dsu_pmu 24576 0 Thanks, Will
